Splenic Vessels as a Rescue for Pediatric Kidney Retransplantation in Children With Iliac-caval Agenesis or Thrombosis

Background. Unavailability of the iliac-caval system due to thrombosis or aberrant anatomy may preclude kidney transplantation (KT) in small infants, exposing them to the complications of long-term dialysis. A tailored approach may enable KT also in these difficult patients. Methods. We report the cases of 2 pediatric patients with a history of long-term hemodialysis, a previously failed KT, pending exhaustion of vascular accesses for dialysis, and unsuitability of the iliac-caval axis as a site for KT. Both patients were successfully managed by using splenic vessels as a source of arterial inflow or venous drainage during KT. Notably, one patient also had a previous liver transplant. Results. Both kidney grafts showed primary function. Posttransplant courses were uneventful, and no rejection episode was observed. At 64- and 10-mo follow-ups, both children had optimal renal function and excellent quality of life. Conclusions. When the iliac-caval system is unavailable, kidney graft implantation on splenic vessels represents a safe and effective option for pediatric KT.

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